Seagate 77767496 Product Manual page 290

1 The information returned is the Logical Block Address and Block Length (in bytes) of the last Logical Block Address
after which a substantial delay (defined as approximately one millisecond for the typical disc drive) in data transfer is
encountered. This returned Logical Block Address is greater than or equal to the Logical Block Address specified in
the Command Descriptor Block. This reported Logical Block Address is the last block prior to a cylinder boundary.
RelAdr (Relative Address)
180
This function is not supported by drives described in this manual.
Service Action
180
10h The Service Action In service action for the Read Capacity (16) command.
In response to the Read Capacity (16) command, the drive returns 12 bytes of Read Capacity data to the host.
The contents of the 12 bytes are listed in Table 181.
Table 181: Read Capacity data
Byte Description
Logical Block Address (MSB)
0
Logical Block Address
1
Logical Block Address
2
Logical Block Address
3
Logical Block Address
4
Logical Block Address
5
Logical Block Address
6
7 Logical Block Address (LSB)
Block Length (MSB)
8
9 Block Length
10 Block Length
Block Length (LSB)
11
276 Fibre Channel Interface Manual, Rev. D